Electrophilic activation of alkynylphosphine oxides and phosphonates provides a novel approach to the synthesis of P-substituted and P-centered heterocycles. Iodocyclization affords a heteroaryl iodide that can, among other things, be used in reiterative alkyne coupling and iodocyclization to give cyclic phosphonates and other cyclization reactions to give π-rich P-heterocycles.
炔基膦氧化物和
膦酸酯的亲电活化为合成P-取代的和P-中心的杂环提供了一种新颖的方法。
碘代环化提供了杂芳基
碘化物,该杂芳基
碘化物可用于(例如)迭代
炔烃偶联和
碘代环化以生成环状
膦酸酯,以及进行其他环化反应以生成富含π的P杂环。